;<Addition of two 8-bit numbers> MVI C,00 ;Initialize C register to 00 LDA 4150h ;Load the value to Accumulator. MOV B,A ;Move the content of Accumulator to B register. LDA 4151h ;Load the value to Accumulator. ADD B ;Add the value of register B to Accumulator. JNC LOOP ;Jump on no carry. INR C ;Increment value of register C. LOOP: STA 4152h ;Store the value of Accumulator. MOV A,C ;Move content of Register C to Accumulator STA 4153h ;Store the value of Accumulator HLT
;<Addition of two 16-bit numbers> LHLD 2000H ;Get first 16-bit number XCHG ;Save first 16-bit number in DE LHLD 2002H ;Get second 16-bit number in HL DAD D ;Add DE and HE SHLD 2004H ;Store 16-bit result in memory locations 2004H and 2005H. HLT ;Terminate program execution
;<Subtraction of two 8-bit numbers> MVI C,00h ;Initialize C register to 00 LDA 4150h ;Load the value to Accumulator. MOV B,A ;Move the content of Accumulator to B register. LDA 4151h ;Load the value to Accumulator. SUB B ;Add the value of register B to Accumulator. JNC LOOP ;Jump on no carry. CMA ;Complement Accumulator Content INR A ;Increment value of register C. INR C ;Increment value of register C. LOOP: STA 4152h ;Store the value of Accumulator. MOV A,C ;Move content of Register C to Accumulator STA 4153h ;Store the value of Accumulator HLT
;<Subtraction of two 16-bit numbers> LXI H,9876H ;load HL with 9876H data LXI B,5432H ;load BC with 9876H data MOV A,L ;move the content of L reg. into Accumulator SUB C ;subtract the content of L reg. into Accumulator STA 2000H ;Store the LSB into 2000H MOV A,H ;move the content of H reg. into Accumulator SUB B ;subtract the content of H reg. into Accumulator STA 2001H ;Store the LSB into 2000H HLT ;Stop
;<Multiplication of two 8- bit nos. using repeated Addition> MVI D,00h ;Initialize D register to 00 MVI A,00h ;Initialize A register to 00 LXI H,4150h MOV B,M ;Get the second number in B register INX H MOV C,M ;Get the second number in C register LOOP: ADD B ;Add content of A to reg. B JNC NEXT ;Jump on no carry to NEXT INR C ;Increment the content of reg. C NEXT: DCR C ;decrement the content of reg. C JNZ LOOP ;Jump on no zero to address STA 4152h ;Store the result in memory MOV A,D STA 4153h ;Store the MSB of result in memory HLT
;<Division of two 8- bit nos. using repeated Subtraction> LXI H,4150h ;Load HL with 4150H MOV B,M ;Get the dividend in b register. MVI C,00h ;Clear C reg. for quotient. INX H MOV A,M ;Get the divisor in A register NEXT: CMP B ;Compare A reg.with reg B JC LOOP ;Jump on no carry to NEXT SUB B ;Increment the content of reg. C INR C ;decrement the content of reg. C JMP NEXT ;Jump on no zero to address LOOP: STA 4152h ;Store the result in memory MOV A,C STA 4153h ;Store the MSB of result in memory HLT
;<1’s complement of 8 bit number> LDA 2200H ;Get the number CMA ;Complement number STA 2300H ;Store the result HLT ;Terminate program execution
;<2’s complement of a no> LDA 2200H ;Get the number CMA ;Complement the number ADI 01H ;Add one in the number STA 2300H ;Store the result HLT ;Terminate program execution
;<Find smallest Number From an array> LXI H,3000h ;Load H-L pair with address 3000H MOV C,M ;Move counter from memory to reg. C. INX H ;Increment H-L pair. MOV A,M ;Move the 1 st number from memory to reg. A DCR C ;Decrement counter. LOOP: INX H ;Increment H-L pair. MOV B,M ;Move the next number from memory to reg. B CMP B ;Compare B with A. JC AHEAD ;Jump to AHEAD if there is a carry. MOV A,B ;Move largest from reg. B to reg. A. AHEAD: DCR C ;Decrement counter. JNZ LOOP ;Jump to LOOP if counter is not zero. INX H ;Increment H-L pair. MOV M,A ;Move the result from reg. A to memory. HLT
;<Find smallest Number From an array> LXI H,3000h ;Load H-L pair with address 3000H MOV C,M ;Move counter from memory to reg. C. INX H ;Increment H-L pair. MOV A,M ;Move the 1 st number from memory to reg. A DCR C ;Decrement counter. LOOP: INX H ;Increment H-L pair. MOV B,M ;Move the next number from memory to reg. B CMP B ;Compare B with A. JC AHEAD ;Jump to AHEAD if there is a carry. MOV A,B ;Move largest from reg. B to reg. A. AHEAD: DCR C ;Decrement counter. JNZ LOOP ;Jump to LOOP if counter is not zero. INX H ;Increment H-L pair. MOV M,A ;Move the result from reg. A to memory. HLT
;<Transfer Block of data bytes from one memory location to another> MVI C,0AH ;Initialize counter LXI H,2200H ;Initialize source memory pointer LXI D,2300H ;Initialize destination memory pointer BACK: MOV A,M ;Get byte from source memory block STAX D ;Store byte in the destination memory block INX H ;Increment source memory pointer INX D ;Increment destination memory pointer DCR C ;Decrement counter JNZ BACK ;If counter 0 repeat HLT ;Terminate program execution
;<Arrange data bytes in ascending order> LXI H,4200H MOV C,M DCR C REPEAT: MOV D,C LXI H,4201H LOOP: MOV A,M INX H CMP M JC SKIP MOV B,M MOV M,A DCX H MOV M,B INX H SKIP: DCR D JNZ LOOP DCR C JNZ REPEAT HLT
;<Arrange data bytes in ascending order> LXI H,4200H MOV C,M DCR C REPEAT: MOV D,C LXI H,4201H LOOP: MOV A,M INX H CMP M JNC SKIP MOV B,M MOV M,A DCX H MOV M,B INX H SKIP: DCR D JNZ LOOP DCR C JNZ REPEAT HLT
